8781010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 19657728

約数和(自身を除く): 10876718

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 47, 70, 85, 94, 119, 157, 170, 235, 238, 314, 329, 470, 595, 658, 785, 799, 1099, 1190, 1570, 1598, 1645, 2198, 2669, 3290, 3995, 5338, 5495, 5593, 7379, 7990, 10990, 11186, 13345, 14758, 18683, 26690, 27965, 36895, 37366, 51653, 55930, 73790, 93415, 103306, 125443, 186830, 250886, 258265, 516530, 627215, 878101, 1254430, 1756202, 4390505, 8781010]

約数ペア:

[(1, 8781010), (2, 4390505), (5, 1756202), (7, 1254430), (10, 878101), (14, 627215), (17, 516530), (34, 258265), (35, 250886), (47, 186830), (70, 125443), (85, 103306), (94, 93415), (119, 73790), (157, 55930), (170, 51653), (235, 37366), (238, 36895), (314, 27965), (329, 26690), (470, 18683), (595, 14758), (658, 13345), (785, 11186), (799, 10990), (1099, 7990), (1190, 7379), (1570, 5593), (1598, 5495), (1645, 5338), (2198, 3995), (2669, 3290)]